Invention Grant
US09588578B2 Method of changing an operating frequency for performing a dynamic voltage and frequency scaling, system on-chip, and mobile device having the same
有权
改变用于执行动态电压和频率缩放的操作频率，系统片上以及具有相同功能的移动设备的方法
- Patent Title: Method of changing an operating frequency for performing a dynamic voltage and frequency scaling, system on-chip, and mobile device having the same
- Patent Title (中): 改变用于执行动态电压和频率缩放的操作频率，系统片上以及具有相同功能的移动设备的方法
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Application No.: US14532649Application Date: 2014-11-04
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Publication No.: US09588578B2Publication Date: 2017-03-07
- Inventor: Jong-Lae Park , Hwang-Sub Lee , Hee-Myung Noh , Dong-Jin Kim , Seung-Geun Lee
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si, Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si, Gyeonggi-Do
- Agency: F. Chau & Associates, LLC
- Priority: KR10-2013-0136159 20131111
- Main IPC: G01R31/30
- IPC: G01R31/30 ; G06F1/00 ; G06F1/26 ; G06F1/32
Abstract:
A method of changing an operating frequency for performing a dynamic voltage and frequency scaling on a central processing unit included in a system on-chip is provided. A previous maximum peak workload of the central processing unit is detected in a history period of the dynamic voltage and frequency scaling when the operating frequency of the central processing unit is determined to be increased, and an increased operating frequency is applied to the central processing unit. The increased operating frequency is calculated based on the previous maximum peak workload of the central processing unit.
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